Ensure a new token is generated if the previous one expired

lib/devise/models/confirmable.rb

@@ -50,6 +50,12 @@ def self.required_fields(klass)
       # add errors
       def confirm!
         pending_any_confirmation do
+          if confirmation_period_expired?
+            self.errors.add(:email, :confirmation_period_expired,
+              :period => Devise::TimeInflector.time_ago_in_words(self.class.confirm_within.ago))
+            return false
+          end
+
           self.confirmation_token = nil
           self.confirmed_at = Time.now.utc
 
@@ -86,7 +92,10 @@ def send_confirmation_instructions
 
       # Resend confirmation token. This method does not need to generate a new token.
       def resend_confirmation_token
-        pending_any_confirmation { send_confirmation_instructions }
+        pending_any_confirmation do
+          self.confirmation_token = nil if confirmation_period_expired?
+          send_confirmation_instructions
+        end
       end
 
       # Overwrites active_for_authentication? for confirmation
@@ -177,14 +186,8 @@ def confirmation_period_expired?
 
         # Checks whether the record requires any confirmation.
         def pending_any_confirmation
-          expired = confirmation_period_expired?
-
-          if (!confirmed? || pending_reconfirmation?) && !expired
+          if (!confirmed? || pending_reconfirmation?)
             yield
-          elsif expired
-            self.errors.add(:email, :confirmation_period_expired,
-              :period => Devise::TimeInflector.time_ago_in_words(self.class.confirm_within.ago))
-            false
           else
             self.errors.add(:email, :already_confirmed)
             false

test/models/confirmable_test.rb

@@ -259,6 +259,16 @@ def confirm_user_by_token_with_confirmation_sent_at(confirmation_sent_at)
       assert_not confirm_user_by_token_with_confirmation_sent_at(4.days.ago)
     end
   end
+
+  test 'should generate a new token if the previous one has expired' do
+    swap Devise, :confirm_within => 3.days do
+      user = create_user
+      user.update_attribute(:confirmation_sent_at, 4.days.ago)
+      old = user.confirmation_token
+      user.resend_confirmation_token
+      assert_not_equal user.confirmation_token, old
+    end
+  end
 end
 
 class ReconfirmableTest < ActiveSupport::TestCase